#include <iostream>

using namespace std;

int main()
{
    cout<<sizeof(char)<<endl;
    cout<<sizeof(wchar_t)<<endl;
    cout<<sizeof(char16_t)<<endl;
    cout<<sizeof(char32_t)<<endl;
    char a[16] = "hello world";
    wchar_t b[16] = L"hello world";
    char16_t c[16] = u"hello world";
    char32_t d[16] = U"hello world";
}